Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Extremely
hazardous ; excessively hazardous.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
ultra- + hazardous
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Examples
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In a letter to the Secret Service, Greenpeace and Friends of the Earth wrote that they were worried that security efforts focused on the Obama entourage "might not extend to the larger community which may suffer serious consequences in case of even one moderately successful terrorist release of ultrahazardous chemicals."
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Among the suit's claims for relief are private nuisance, trespass, and ultrahazardous activities.
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